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Best Engine Oil????

67K views 89 replies 50 participants last post by  Analognerd 
#1 ·
Hey guys.... I have a '96 Nissan 200SX with the GA16DE motor. The engine has about 119,000 miles on it and i was wondering

WHAT IS THE BEST BRAND, TYPE, AND WEIGHT OIL TO USE?

i currently use 10W-30 Castrol GTX High Mileage and it runs wonderfully. Is there a better brand/type/weight to use?????

Also.... i am adding a TURBO this summer, running about 8-10 psi. What oil would ya suggest i use then? same one? what parts would you suggest i replace to prepare for it (other than the clutch)?

thanks guys.
 
#3 ·
Only bad thing about the Mobil 1 in my experience has been if you switch to it in an older engine,it may cause the seals to leak because of the strong detergent package in it.A friend of mine put it in his 92 Pathfinder,and he had to replace the rear main seal shortly thereafter(but I have used it for years in my Frontier with no problems even after 192k mi).You definitely would want it in a turbo application because it is more resistant to breakdown than a conventional oil.
 
#4 ·
Only bad thing about the Mobil 1 in my experience has been if you switch to it in an older engine,it may cause the seals to leak because of the strong detergent package in it.A friend of mine put it in his 92 Pathfinder,and he had to replace the rear main seal shortly thereafter(but I have used it for years in my Frontier with no problems even after 192k mi).You definitely would want it in a turbo application because it is more resistant to breakdown than a conventional oil.
Agreed....Mobil 1 is the best oil but I won't recommend it on such a high mile engine unless it has consistantly been given Mobil 1 in the past. The ironic thing is, the crappy oil that people use actually sort of creates a seal w/ all the residue the oil leaves behind in the engine. Mobil 1 will clean all these crap out but as a result your engine will start to leak. You may get lucky but this is the conventional wisdom.
 
#7 ·
ive ran mobil 1 since about 110,000. i had a front main seal that was bad...when i ran 15w-50 it didnt leak more than normal...switched to 10w-30 and it bled like hell. id recommend using any type of systhetic such as red line, royal purple, mobil 1. but mobil is more cost effective and you can buy a 5 quart jug at walmart for less than $20
 
#16 ·
I might go to 10w30,but not 40. Nissan engines have tight bearing clearences and a really thick oil could cause the bearings to run dry.This was not the case in older engines which were not built nearly as tight as they are today which is why you could run, say, a 20w 50 in your 350 Chevy with no problems.
 
#17 ·
I have one more question, I know people say change the oil every 3000 miles or 3 months, but I barely drive 1000 miles in those 3 months. Would it be ok if I changed the oil on a time period of every 4-5 months? Or would every 3 months still be optimum in your opinions?

Thanks
 
#25 ·
I started using Mobil 1 Synthetic 5-w30 at 77k and it runs great and i also did a motor flush 2 changes a go and i use Engine Restore every time and it rusn like new and no leaks ..

But I am wondering about the new Mobil 1 0-W30. dose anyone now what the purpose is for this new light weight oil?
 
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